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题名: Height Precision of SAR Altimeter and Conventional Radar Altimeter Based on Flight Experimental Data
作者: Shi, Lingwei; Xu, Ke; Liu, Peng; Yang, Shuangbao; Wang, Lei; Yu, Xiufen
作者部门: 空间科学部
通讯作者: Xu, K (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave & Remote Sensing Technol, Beijing 100190, Peoples R China.
关键词: Airborne flight experiment ; conventional radar altimeter (CRA) ; height precision ; SARAL
刊名: IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
ISSN号: 1939-1404
出版日期: 2016
卷号: 9, 期号:6, 页码:2676-2686
收录类别: SCI ; EI ; CPCI
英文摘要: Compared with conventional radar altimeter (CRA), synthetic aperture radar altimeter (SARAL) is a new generation radar altimeter with better height precision and along-track spatial resolution. As using synthetic aperture technique, SARAL data processing and waveform model are very different from CRA. To verify the performance and the data processing algorithm, an airborne experimental system of SARAL is developed. The experimental system was installed in Y-12 aircraft, and some valid data was obtained in October 2014. The echo data with SAR mode is obtained in the experiment and the echo data of CRA mode is extracted from SAR mode data. The two modes have the same observation targets and error sources and, then, their height measurement precisions are comparable. The results indicate that the rangemeasurement precision of SARALis improved about 1 times. The difference of the significant wave heights from the SAR mode data and CRA mode data is negligible.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/5603
Appears in Collections:空间科学部_期刊论文

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